If you are looking for an easy side dish, try my Air Fryer Peppers and Onions recipe! Roasting them in the air fryer gives them a great roasted flavor.

Air Fryer Peppers and Onions in a bowl with vibrant colors.
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If you love the flavor of sautéed peppers and onions, you will love this quick air fryer method.

If you love other easy Air Fryer Vegetable Recipes, try my recipe for Trader Joe’s Air Fryer Cauliflower Gnocchi, Air Fryer Bang Bang Cauliflower, Air Fryer Copycat Burger King Onion Rings, or Air Fryer Hasselback Zucchini.

Air Frying Peppers and Onions, has never been easier!

Close-up of seasoned Air Fryer Peppers and Onions, ready to serve.

Why You Will Love This Recipe

  • Quick and Easy: This recipe takes just 15 minutes to prepare, making it a perfect option for busy weeknights.
  • Flavorful Side Dish: The combination of sweet bell peppers and zesty red onions creates a delicious and vibrant side dish.
  • Healthy Option: Air frying reduces the need for added oils, making this a healthier alternative to traditional frying methods.
  • Versatile Topping: These peppers and onions are great as a topping for fajitas, tacos, salads, or even sandwiches.
  • Customizable Seasoning: You can easily adjust the seasonings to suit your taste, whether you prefer a mild flavor or something more robust.
  • Colorful Presentation: The bright colors of the peppers and onions make for an eye-catching addition to any meal.

Ingredients Needed

Ingredients needed for Air Fryer Peppers and Onions
  • Bell Peppers: Use Red Bell Peppers, Yellow, and Green Bell Peppers
  • Onions: Use white onions, sweet onions, yellow onions, or red onions. 
  • Olive Oil: A drizzle of olive oil helps achieve that perfect roast in the air fryer.
  • Salt and Pepper: Enhances the natural flavors of the peppers and onions.
  • Garlic Powder: Offers a convenient way to infuse vegetables with a warm, aromatic flavor.
  • Italian Seasoning (Optional): For a blend of herbs like oregano, basil, and thyme, offering a hint of Mediterranean flair.
  • Balsamic Vinegar (Optional): Provides a lovely sweet and tangy contrast, elevating the dish with a gourmet touch.

How To Cook Peppers and Onions In The Air Fryer

"Sliced bell peppers and red onions cooked in an air fryer."

Step One: Start by washing and slicing the bell peppers (red, yellow, and green) into strips. Peel and slice the onions into similar-sized strips to ensure even cooking.

Step Two: Toss the pepper and onion slices with olive oil in a large bowl to coat them lightly—season with Kosher salt, black pepper, onion powder, and garlic powder. If using, add Italian seasoning for extra flavor. You can also drizzle balsamic vinegar over the vegetables for a hint of sweetness and tang.

Cooked Air Fryer Peppers and Onions garnished with fresh herbs.

Preheat the Air Fryer: Preheat your air fryer to 380 degrees F (190°C), for 3-5 minutes.

Cook the Vegetables: Place the seasoned peppers and onions in the air fryer basket in a single layer. Set the cooking time for 10-15 minutes, shaking the basket or stirring halfway through until tender and slightly charred.

"Air Fryer Peppers and Onions in a colorful presentation."

Air Fryer Peppers and Onion Recipe Tips

  • Even Slicing: Cut the peppers and onions into uniform sizes.
  • Light Oil Coating: Toss the vegetables in just enough oil to coat them lightly.
  • Seasoning Balance: Be careful with the amount of seasoning.
  • Preheat the Air Fryer: Always preheat your air fryer before adding the vegetables.
  • Don’t Overcrowd: Cook in batches if necessary.
  • Shake or Stir: Halfway through the cooking time, shake the basket or use a spatula to stir the vegetables.
  • Cooking Time Adjustment: Depending on your air fryer model and the amount of vegetables, cooking times can vary.
  • Adding Freshness: After cooking, add a splash of fresh lemon juice or vinegar for a bit of acidity, which can brighten the flavors.
  • Utilizing Leftovers: Any leftovers can be used in various dishes like omelets, sandwiches, or salads, adding flavor and nutrition.
  • Resting Time: After cooking, the vegetables should rest for a minute or two. This allows the residual heat to finish cooking them to perfection.

Air Fryer Onions and Peppers Recipe Faqs

Do I need to preheat my air fryer before adding the peppers and onions? Yes, preheating the air fryer helps start the cooking process immediately and ensures roasting is even done.

How do I prevent the vegetables from becoming too soft or soggy? Avoid overcrowding the air fryer basket and cook in batches if needed.  

Can I add other vegetables to the mix? Absolutely! You can include zucchini, green beans, sweet potatoes, eggplant, or mushrooms.

Should I season the vegetables before or after air frying? Seasoning them before air frying is best so the flavors can meld together during cooking.

How long can I store the leftover roasted peppers and onions? Store them in an airtight container in the refrigerator for up to 3-4 days.

Can I roast different colored peppers together? Yes, different colored peppers can be roasted together.

Is it necessary to toss the vegetables midway through cooking? Yes, stirring or shaking the basket halfway through cooking helps the peppers and onions roast evenly.

Can I make these peppers and onions ahead of time? Yes, you can roast them ahead of time and reheat them when needed. They’re great for meal prep and can be added to various dishes.

Air Fryer Peppers and Onions served as a side dish."

More Air Fryer Recipes

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Air Fryer Peppers and Onions

Air Fryer Peppers and Onions

5 from 2 votes
Prep Time: 10 minutes
Cook Time: 15 minutes
Total Time: 25 minutes
Servings: 6 Servings

Description

Elevate your meals with these Air Fryer Peppers and Onions, a quick and delicious side dish that perfectly complements a variety of dishes.

Ingredients 

  • 2 bell peppers, 1 red, 1 green, sliced into strips
  • 1 large onion, sliced into strips
  • 2 tablespoons olive oil
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon Kosher salt, to taste
  • 1/2 black pepper

Instructions

  • Preheat the air fryer to 380°F (190°C).
  • In a large bowl, combine the sliced peppers and onions.
  • Drizzle with olive oil and season with garlic powder, salt, pepper, and optional herbs. Toss to coat evenly.
  • Place the seasoned vegetables in the air fryer basket, spreading them out evenly.
  • Air fry for 10-15 minutes, shaking the basket or stirring halfway through, until the vegetables are tender and slightly charred.
  • Serve hot as a side dish, or use as a topping or filling for other recipes.

Equipment

  • Cooking Spray
  • Parchment Paper, optional

Notes

Recipe Notes:
  • Adjust seasoning to taste. You can add more spices like cumin or paprika for extra flavor.
  • For best results, cook in batches to avoid overcrowding the air fryer.
  • These can be stored in an airtight container in the fridge for up to 3-4 days.

Nutrition

Serving: 1ServingCalories: 63kcalCarbohydrates: 5gProtein: 1gFat: 5gSaturated Fat: 1gPolyunsaturated Fat: 1gMonounsaturated Fat: 3gSodium: 197mgPotassium: 124mgFiber: 1gSugar: 3gVitamin A: 1243IUVitamin C: 53mgCalcium: 9mgIron: 0.3mg

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